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Cover
Document and Entity Information
Financial Statements
Consolidated Income Statements
Consolidated Balance Sheets
Consolidated Balance Sheets (Parenthetical)
Consolidated Statements of Comprehensive Income
Consolidated Statements of Comprehensive Income (Parenthetical)
Consolidated Statement of Stockholders' Equity
Consolidated Statements of Cash Flows
Notes to Financial Statements
Nature of Business
Summary of Significant Accounting Policies
Investments
Net Income Per Common Share
Allowance for Credit Losses
Property and Equipment
Amortizable Intangible Assets
Leases
Notes Payable and Other Noncurrent Liabilities
Commitments and Contingencies
Share-Based Compensation Plans
Treasury Stock
Related Party Transactions
Accounting Policies
Summary of Significant Accounting Policies (Policies)
Notes Tables
Investments (Tables)
Net Income Per Common Share (Tables)
Allowance for Credit Losses (Tables)
Property and Equipment (Tables)
Amortizable Intangible Assets (Tables)
Leases (Tables)
Share-Based Compensation Plans (Tables)
Notes Details
Nature of Business (Details)
Summary of Significant Accounting Policies - Additional Information (Details)
Summary of Significant Accounting Policies - Acquisition (Details)
Investments (Details)
Investments - Maturities of Available-for-sale Investments (Details)
Net Income Per Common Share - Summary of Weighted Average Number of Common Shares Outstanding (Details)
Net Income Per Common Share - Additional Information (Details)
Allowance for Credit Losses (Details)
Property and Equipment (Details)
Amortizable Intangible Assets - Net Intangible Assets (Details)
Amortizable Intangible Assets - Amortization Expense for Developed Curricula and Student Relationships (Details)
Leases (Details)
Leases - Future Payment Obligations (Details)
Notes Payable and Other Noncurrent Liabilities (Details)
Share-Based Compensation Plans - Additional Information (Details)
Share-Based Compensation Plans - Summary of Activity Related to Restricted Stock Granted under Company's Incentive Plan (Details)
Share-Based Compensation Plans - Summary of Activity Related to Stock Options Granted under Company's Incentive Plan (Details)
Share-Based Compensation Plans - Share-Based Compensation Expense (Details)
Treasury Stock (Details)
Related Party Transactions (Details)
All Reports